1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your EARMOR Tactical PTT Adapter M51-M1. This adapter is designed to facilitate communication with Motorola Talkabout radios, connecting your headset to your radio for clear and efficient push-to-talk functionality. Please read this manual thoroughly before use to ensure optimal performance and safety.
2. Product Overview
The EARMOR Tactical PTT Adapter M51-M1 is a robust accessory designed for seamless integration with Motorola Talkabout radios. It features a 1-pin connector for compatibility with various Motorola models and other compatible devices. The adapter allows users to activate their radio's transmission function with a simple press of a button, enhancing communication efficiency in tactical or demanding environments.

Figure 2.1: EARMOR Tactical PTT Adapter M51-M1. This image shows the black PTT adapter with its coiled cable and 1-pin connector.
2.1 Key Features
- Durable construction for reliable performance.
- 1-pin connector for Motorola Talkabout radios.
- Ergonomic push-to-talk button.
- Compatible with various tactical headsets (e.g., EARMOR, select 3M Peltor Comtac & TCI Liberator Models, PolTact, NEXUS TP-120 Connector).
2.2 Package Contents
- 1 x EARMOR Tactical PTT Adapter M51-M1
- Note: Additional accessories such as headsets or radios are sold separately.
3. Setup
Follow these steps to properly connect your PTT adapter to your radio and headset.
- Connect Headset: Locate the headset jack on the PTT adapter. Insert your compatible tactical headset's connector firmly into this jack. Ensure a secure connection to prevent audio interruptions.
- Connect to Radio: Locate the 1-pin connector on the PTT adapter cable. Insert this connector into the corresponding 1-pin port on your Motorola Talkabout radio. Ensure the connector is fully seated.
- Secure Placement: Attach the PTT adapter to your gear (e.g., vest, belt) using its integrated clip, if available, to ensure it is easily accessible and does not interfere with movement.

Figure 3.1: Example of a tactical headset, similar to those compatible with the PTT adapter. This image shows a person holding a black tactical headset with a microphone boom.
4. Operating Instructions
Once the PTT adapter is correctly connected, operating it is straightforward.
- Power On Radio: Ensure your Motorola Talkabout radio is powered on and set to the desired channel.
- Listen for Communications: Audio from the radio will be transmitted through your connected headset. Adjust the radio's volume as needed.
- Transmit (Push-to-Talk): To transmit, firmly press and hold the large button on the PTT adapter. Speak clearly into your headset's microphone.
- Release to Receive: Release the PTT button to stop transmitting and return to receive mode.
Important: Always ensure the PTT button is fully released when not transmitting to allow for incoming communications.
5. Maintenance
Proper care will extend the life and functionality of your PTT adapter.
- Cleaning: Use a soft, dry cloth to wipe down the adapter. Avoid using harsh chemicals or abrasive cleaners.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Cable Care: Avoid sharp bends or excessive pulling on the cables to prevent internal damage.
- Connector Inspection: Periodically inspect the 1-pin connector for any signs of damage or corrosion.
6. Troubleshooting
If you encounter issues with your PTT adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No audio from headset. |
|
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| Cannot transmit (PTT button unresponsive). |
|
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| Intermittent audio or transmission. |
|
|
If the problem persists after attempting these solutions, please contact customer support.
7. Specifications
- Model: EAR M51-M1
- Brand: EARMOR
- Connector Type: 1 Pin Connector
- Compatible Devices: Motorola Spirit, Talkabout, Cobra PR, Microtalk, Garmin Rino, NATO/Military Wiring, select 3M Peltor Comtac & TCI Liberator Models, Earmor, PolTact, NEXUS TP-120 Connector
- Item Weight: 3.52 ounces
- Color: Black
- ASIN: B07D5MZL7H
- Date First Available: May 18, 2018
8. Warranty and Support
For warranty information or technical support, please refer to the official EARMOR website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance, you may visit the EARMOR Store on Amazon.





